(August 13, 2018, 9:40 AM EDT) -- ST. PAUL, Minn. — A divided panel of the Minnesota Court of Appeals on July 30 ruled that a local ordinance prohibiting all mining of industrial minerals including silica sand used from hydraulic fracturing does not violate the dormant commerce clause of the U.S. Constitution (Minnesota Sands LLC v County of Winona, Minnesota, No. A18-0090, Minn. App.; 2018 Minn. App. LEXIS 347)....